Permutation-padlock.



PATENTED JUNE 25, 1907.

7R .0 v E F WWW. z Kw W1, 5 L% mm M um Hmm RL BF M A C D E F H 1M w ill. 2H 6 5 II IX 5M H Y H 1 a fi HARRY HANDLER, OF LAWRENCE, MASSACHUSETTS.

PERiVlUTATION-PADLOCK.

Specification of Letters Patent.

Patented June 25, 1907.

Application filed March 25, 1907. Serial No. 364,449.

T at whom, it may concern:

Be it known that I, HARRY HANDLER, a citizen of the United States, residing at Lawrence, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Permutation- Padlocks, of which the following is a specification.

This invention relates to improvements in what are known as permutation or combina tion padlocks. Its purposes are to simplify the construction of such padlocks and to provide means whereby, when the lock is open, the tumblers will remain in place with out turning so that the device may be locked instantly.

Figure 1 is an elevation of the padlock closed. Fig. 2 is an elevation of the padlock open. Fig. 3 is a vertical sectional view. Fig. 4 is a top view of the bottom plate with the post, latch, and spindle removed from the tumblers. Fig. 5 is a detail of the spindle and spindle rod slide. Fig. 6 is a top view of one of the tumblers. Fig. 7 is an elevation of part of the bottom plate, the spindle and latch.

My device comprises a top plate A, near one end of which projects the bolt B which is intended to pass through the staple or other parts to be held together. At the other end of plate A is a screw-threaded opening 11 to receive one end of the hollow grooved post 12. This post 12 is formed with a lengthwise dove-tailed groove 13 adapted to receive the latch 21 which is correspondingly dove-tailed. Post 12 is also eccentrically bored lengthwise to form the passage 1.4 which receives the spindle 31 and sliding rod 34. Post 12 is screwed into opening 11 and is provided with a flange 15 at its other end. Flange 15 is formed with a suitable opening for latch 21 and serves to keep the tumblers C, D, E, F, in place.

The tumblers C, D, E, F are each formed with an annular double flange 41, a web 42, and a round opening 43 which fits post 12 and from which extends the notch 44. The post 12 passes through the openings 43 in the tumblers and flange 15 holds them in place.

The latch 21 extends at right angles to and is carried by bottom plate G. It is dovetailed or flanged lengthwise to fit groove 13 in post 12 and to slide easily therein. It is formed with teeth 22 which register'when the lock is closed, with the spaces between the webs 42 on the tumblers C, D, E, F, whereby said tumblers may revolve about post 12 thereby holding latch 21 and thereby bottom plate G in place ordinarily. On a well-known principle, by bringing the appropriate letters on the outside of the tumblers in such position that the notches 44 are in line, and in line with teeth 22 of latch 21, latch 21 and base plate G could be withdrawn were it not for the construction of spindle 31. This spindle 31 extends upward from plate G parallel with latch 21 through passage 14 in post 12. It is flattened at 32 where it is provided with the slot 33. The rod 34 is bifurcated and carries a pin 35 which passes through slot 33. At its other end, rod 34 carries a pin 36 which enters a recess 16 in the end of post 12 between passage 14 and groove 13. The purpose of spindle 31, rod 34, and pin 36 is to limit the outward movement of the base plateG and latch 21 so that instead of being drawn entirely out, latch 21 will be withdrawn only far enough so that teeth 22 register with webs 42, instead of with the spaces between them as see Fig. 3, thereby preventing tumblers C, D, E, F from turning. other suitable means for limiting the outward movement of plate G, and latch 21 may be used without departing from my invention. Pivoted to base plate G is the receiver H in which is the opening 61 into which is received the free end of bolt B when the lock is closed. The operation is as follows :I/Vith the lock closed, as shown in Fig. 1, the webs on the tumblers passing freely between teeth 22, hold the parts firmly together. I/Vhen it is desired to open the lock, the appropriate letters on the tumblers are brought in alinement, thus bringing the notches 44 in line with teeth 22 of latch 21. Base plate G carrying with it latch 21 and spindle 31 can now be withdrawn from post 12 as far as pin 35 in slot 33, will permit. This is enough to clear bolt B from receiver H which is then moved aside, as shown in Fig. 4, thus unlocking the padlock. In this position the tumblers C, D, E, F, are kept from revolving by teeth 22 as explained, and in order to lock again, it is only necessary to swing back receiver H into position and close up plate G, when by giving a turn to the tumblers, the device is securely locked.

TOO

To prevent plate G, latch 21 and spindle 31 from being unintentionally closed up, thereby locking the device when it is carried in the pocket or the hand, I provide a spring 51 riveted to plate G. This spring 51 has a wide head 52 and is so placed that when plate G is drawn away from tumbler F in unlocking, a distance equal to the width of head 52, spring 51 forces head 52 in between thus holding the parts apart until head 52 is pressed out by hand when the device can be locked. This spring 51 need not be used, but I prefer to use it.

l/Vhat I claim as my invention and desire to cover by Letters Patent is 1. In a permutation padlock, a top plate, a bolt carried thereby, a post carried by the top plate and having a longitudinal groove and a flange, tumblers carried by the post between the flange and the top plate each tumbler comprising a web with a post opening and notch therein, combined with a bottom plate, a receiver pivoted thereto and adapted to receive the free end of the bolt, a latch carried by the bottom plate having teeth adapted to register with the spaces between the webs of the tumblers and with they notches therein.

2. In a permutation padlock, atop plate, a bolt carried thereby, a post carried by the top plate and having a longitudinal groove and a flange, tumblers carried by the post between the flange and the top plate each tumbler comprising a web with a post opening and notch therein, combined with a bottom plate, a receiver pivoted thereto and adapted to receive the free end of the bolt, a latch carried by the bottom plate having teeth adapted to register with the spaces between the webs of the tumblers and with the notches therein, and a spindle carried by the bottom plate and comprising two parts with a limited sliding connection between the same and provided with a pin whereby the movement of the bottom plate is limited.

3. In a permutation padlock, a top plate, a bolt carried thereby, a post carried by the top plate and having a longitudinal groove and a flange, tumblers carried by the post between the flange and the top plate each tumbler comprising a web with a post opening and notch therein, combined with a bottom plate, a receiver pivoted thereto and adapted to receive the free end of the bolt, a latch car ried by the bottom plate having teeth adapted to register with the spaces between the webs of the tumblers and with the notches therein, a spindle carried by the bottom plate and comprising two parts with a limited sliding connection between the same and provided with a pin whereby the movement of the bottom plate is limited, and a spring which interposes between the bottom tumbler and the bottom plate when the lock is opened.

4. In a permutationpadlock, a top plate, a

bolt carried thereby, a post carried by the top plate and having a longitudinal groove and a flange, tumblers carried by the post between the flange and the top plate each tumbler comprising a web with a post opening and notch therein, combined with a bottom plate, a receiver pivoted thereto and adapted to receive the free end of the bolt, a latch carried by the bottom plate having teeth adapted to register with the spaces between the webs of the tumblers and with the notches therein, and means for limiting the outward movement of the latch and bottom plate when the teeth of the latch and the notches of the tumblers register.

5. In a permutation padlock, a top plate, a bolt carried thereby, a post carried by the top plate and having a longitudinal groove and a flange, tumblers carried by the post between the flange and the top plate each tumbler comprising a web with a post opening and notch therein, combined with a bottom plate, a receiver pivoted thereto and adapted to receive the free end of the bolt, a latch carried by the bottom plate having teeth adapted to register with the spaces between the webs of the tumblers and with the notches therein, means for limiting the outward movement of the latch and bottom plate when the teeth of the latch and the notches of the tumblers register, and a spring which interposes between the bottom tumbler and the bottom plate when the lock is opened.

6. In a permutation padlock, a top plate, a bolt. carried thereby, a post carried by the top plate and having a longitudinal groove together with a spindle bore and a flange, tumblers carried by the post between the flange and the top plate each tumbler comprising a web with a post opening and notch therein, combined with a bottom plate, a receiver pivoted thereto and adapted to receive the free end of the bolt, a latch carried by the bottom plate having teeth adapted to register with the spaces between the webs of the tumblers and with the notches therein, a spindle carried by the bottom plate flattened and slotted near its free end and entering the spindle bore of the post, and a rod in said bore bifurcated to pass over the flattened end of the spindle and provided with a pin through the slot therein and at its other end with a pin which projects into a recess in the post.

7. In a permutation padlock, a top plate, a bolt carried thereby, a post carried by the top plate and having a longitudinal groove to gether with a spindle bore and a flange, tumblers carried by the post between the flange and the top plate each tumbler comprising a web with a post opening and notch therein, combined with a bottom plate, a receiver pivoted thereto and adapted to receive the free end of the bolt, a latch carried by the bottom plate having teeth adapted to register with the spaces between the webs of the tumblers and with the notches therein, a spindle carinterposes between the bottom tumbler and ried by the bottom plate flattened and slotted the bottom plate when the lock is opened. 10 near its free end and entering the spindle bore In testimony whereof I afliX my signature of the post, a rod in said bore bifurcated to in presence of two witnesses.

pass over the flattened end of the spindle and HARRY HANDLER. provided with a pin through the slot therein Witnesses: and at its other end with a pin which projects ORRIN ANDREWS,

into a, recess in the post, and a spring which VCORNELIUS J. MAHONEY. 

